Ore-roasting furnace.



E. T. GLTHURPE.

UEE RUASUNG FURNACE.

APPUCATION msn JULY 27. 191e.

LZQZ

Wifi?, els] z utentd Feb, 2,1 19ML E. T. GOLDTHORPE.

ORE ROASTING URNACE.

APPLICATION man JULY 11. 1915.A

1,2953729. 'y Patented Feb 25, 1919.

3 SHEETS-SHEET 2.

E. T. GOLDTHORPE.

ORE ROASTING FURNACE.

APPucATmN 11150 JULY 17. 1916.

11,295,729. Patented 11611.25, 19111.

3 'SHEETS-SIHEET 3.

I nace casing UNTTED STATES PATENT OFFICE.

EDWIN T. GOLDTHORPE, OF CHICAGO, ILLINOIS, ASSIGNOR, BY DIRECT AND MESNE ASSIGNMENTS, OF THREE-EIGHTHS TO FRED VON NESSEN AND THREE-EIGHTHS TO WILLIAM H. DICKS, BOTH OF CHICAGO, ILLINOIS.

ORE-ROASTING FURNACE.

Application led J'uly 17, 1916.

To all whom it may concer/n:

'Be it known that I, EDWIN T. Goni THoRrE, a citizen of the United States, and a resident of the city of Chicago, county of Cook, and State of Illinois, have invented certain new and useful Improvements in Ore-Roasting Furnaces of which the following is a specification.

My invention relates to improvements 1n ore roasting furnaces, and has for its object the provision of an improved furnace of this character in which ore may beroasted conveniently and expeditiously.

A further object is the provision of such a furnace in which the ore may be roastedv while bein agitated.

Other o jects will appear hereinafter.

With these objects in view the invention consists inthe combinations and arrangements of parts hereinafter described and claimed. v

The invention will be best understood by reference to the accompanying drawings forming' a part of this specification, and in which,

Figure l is a front view ofa furnace shown partially in sectionwith parts broken away for the sake of clearness,

Fig. 2, a view of the discharge end of the furnace,

Fi 3, a top plan view corresponding with 4ig. 2,

Fi 4, an end view of the feed end of nace with portions broken away and others in section,

Fig. 5, adetail view illustrating a stop em loyed in the construction,

ig. 6, a front view corresponding with Fig. 5, v

Fig. 7, a detail view illustrating a tempoary -stop employed in the construction, an

Fig. Y

The preferred form of construction, as

illustrated in the drawings, comprises a fur- .if

10 having-an inclined .grate 11.

therein; plurality of fire doors 12-are 'provided in the front of the furnace giving access to different portions of the grate 11 and corresponding ash .doors 13 are provided thereunder, as indicated in Fig. 1.

A draft flue 14 is positioned centrallyover lthe furnace and is connected by means' of Specification of Letters Patent.

F ig. 8, a side view corresponding with Patented Feb. 25, 1919. serial No. 109,795. i

pipes 15 with brauch flues 16 extending along each side of the top of the furnace. Branches 16 are connected by means of a plurality of branches 17 with the upper portion of the interior of the furnace, above the grate 11, and serve to produce a draft through said grate, the arrangement distributing said draft uniformly through said grate.

An inclined track 18 is arranged in the furnace over the grate 11 and a vertically sliding entry door 19 is positioned at the upper end of said track. A vertically sliding discharge door 20 is positioned at the lower end of said track and both of said doors are balanced by counter-weights 21, as indicated. A plurality of ore containers or retorts 22, in the form ofpipes, are arranged on .track 18 to roll thereon, under the infiuence of gravity, as will be readily understood. Each of these containers or retorts is provided at one end with a permanent sealing cap 23 and at its other end with a removable sealing cap 24 and having a bay" onetslot connection 25 with said container.

4A removable swinging stop'26 is pivotally mounted in the front wall of the furnace 10 and has an upwardly turned nose 27 at its inner end arranged to be insertedbetween the last and the next to the last container or retort 22 resting ou track 18, the arrangement being such that when the track 18 is iilled with retorts, the lowermost retort rests against the door 2O and the stop 26 is inserted between said lowermost retort and the next retort so that when door 20 is opened, the lowermost retort may roll therethrough but the remainder of the retorts will be .prevented from moving. After the door'has been closed, the stop 1s manipulated to release 'the retortson track 18 and permit said retorts to` roll slightly on said track until the lowermost retort again contacts with the door .20. Then afresh retort is introduced at the upper end ofthe track. By this means.

theA operationfof the .furnace will be rendered continuous and the ore in the containers constantly agitated during the roasting thereof. v

For convenience in loading or starting fthe furnace, a temporary stop is provided consisting of a. bar 28 having downwardly turned ends 29, said bar being adapted to be positioned on the track 1S and to prevent mit of the insertion of more retorts and this process continued until the track 18 is filled with retorts, as indicated, whereupon the stop 28 is removed. The movements of stop 28 may be readily effected by the use of a long rod or poker having a crooked end.

A tiltable support 30q is arranged at the discharge end of the furnace and is pivoted at 3l to a standard 32. Clamps 33 are provided on said support in position to secure a retort or container passing thereon from the tracks 18 upon elevation of the door 20. The support 30 isconnected, bv means of a link 34, with a foot lever 3 5 by means of which the support may be readily tilted. In operation, after a container or retort has. been discharged from the furnace onto the support 30 itis clamped thereon by means of the clamps 33. Then the removable cap 25 is removed and the support tilted by means of foot lever'35 to discharge the contents of the retort.

A chute 36 is arrangedl to receive the discharge from a filled retort and direct the same into the spout 37 leading into a screw conveyer 38 anranged at the rear of the furnace. Conveyer 38 passes through a cham.- ber or casing 39 containing water for 0001-' ing purposes and is provided with a discharge spout 'O'discharging into a discharge well 4l. .A suitable elevator or conveyer (not shown) maybe provided for removing the roasted ore from the well 41,01' said ore may be removed by hand or other suitable means. .A

The construction disclosed is especially adapted for the roasting of yellow ocher or oxid of iron for use as abody for black paint. The constant agitation of -the ore while being roasted tendsto uniformity of heating and also prevents cakin of the ore and facilitatessubsequent grin 111g or pulaA verizing of the same. The yellow ocher thus treated will assume a fast black color and is ground in the usual manner with lihseed oil .and turpentine to form a black paint. To form such paint, preferably fifty per cent. of the ground material is mixed with fortyeight per cent. linseed oil and two per cent.

of turpentine. The paint thus produced isV adapted for use as a paint for all purposes but is especially adapted for use in'painting iron inasmuch as the same will expand and contract therewith.

while r heve iuuetreeed end deeeribea the Y- e5 therefore, do not wish to be limited to .the

precise details of'construction set forth, but desire to avail myself of such variations and modifications as come within the scope of the appended claims.

Having described my invention what I claim as new and desire to secu-re by Letters Patent is:

l. An ore roasting furnace comprising heating means; an inclined track in said heating means; cylindrical ore containers rolling on said track; and removable means for preventing rolling of said containers, substantially as described.

2. A-n ore roasting furnace comprising heating means; an inclined track in said heating means; cylindrical closed ore containers rolling on said track; and removable means for preventing rolling of said containers, substantially as descrlbed.

3. An ore roasting furnace comprisino` heating means; an inclined track in sai heating means; cylindrical ore containers rolling on said track; an entry door at the upper end of said track; a discharge door at the lower end of said track; and a removable' stoparranged to intercept the next to the lowermost of said containers, substantiallyv as described. i

Y 4e. An ore roasting furnace comprising heating means; an inclined track in said heating means; cylindrical closed ore containers rolling on said track; an entry door 'at the upper end of said track; a discharge door at the lower end of said track; a re- -movable stop arranged to intercept the next -to the lowermost of said containers, substam tially as described.

5. An -ore roasting furnace comprising a grate; draft iues positioned over different lportions of said grate; an inclined track over said grate; cylindrical ore containers rolling on said track; and removable means for preventing rolling of substantially as descrlbed.

6. An ore roasting furnace comprising heating means; an inclined track in said heating means; cylindrical ore containers rolling on said track; an entry door at the upper end of said track; a discharge door at the lower end of said track; a removable 'stop arranged to intercept the next to the lowermost of said containers; a tiltable support arranged to receive containers passing through s a1d discharge door; and clamping means 'on sald support arranged to secure a-'container thereon, substantially as described.

7. An ore roasting .furnace comprising heating means; an inclined track in said rolling on said track; an entry door at the upper end of said track; a discharge door at the lower end of said track; a removable stop arranged to intercept the next to the die heating means; cylindrical ore containers 1- lowermost of said containers; a tiltable sup- 12 said containers,`

port arranged to receive conti through said discharge doc.

means on said support arrange( container thereon; a screw ce ranged to receive discharge from a coi on said support; and means for cooling conveyer, substantially as described.

8. An ore roasting furnace comprising heating means;y an inclined track in said heating means; cylindrical ore containers rolling on said track; an entry door at the upper end of said track; a discharge door at the lower end of said track; a removable stop arranged to intercept the next to the lowermost of said containers; a tiltable support arranged to receive containers passing said discharge door; clamping Y said support arranged to secure a s thereon; a screw conveyer aro receive discharge from a container l support; means for cooling said er; and a discharge Well adapted to v e the discharge from said conveyer, simmantially as described.

.In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

EDWIN T. GOLDTHORPE.

Witnesses:

JOSHUA R. H. Po'rrs, Hanan F. Linus. 

